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From learning to ride a bike to hanging with the Yo Gabba Gabba crew, see how the active birthday boy has been living it up this year
Updated: Friday Aug 19, 2011 | 06:00 AM EDT
By: Nisha Gopalan
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Zuma Rossdale, who turns 3 on Aug. 21, exercises his patriotic power – and grocery-toting muscles! – in an adorable Captain America costume while out in Los Angeles on July 4.
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